Case study
12 official streams, 13.4 hours. Everything on this page comes from our own recordings of public broadcasts. Nobody uploaded an advert: Spotledger found them.
Replay of a real run from our recordings
What we recorded
We record each station's official online stream. What listeners heard on FM can differ, because a stream can carry different adverts. Every report prints the source it was recorded from.
The numbers
Brands shown here are not Spotledger customers. These adverts were recorded from public broadcasts.
Coverage
Recorded from each station's official online stream. Hours monitored is the time we had real audio. The share is the minutes with real audio out of all the minutes in that station's recorded run. Gaps are listed, not hidden.
| Station | City | Frequency | Hours monitored | Share of the run monitored | Gaps over a minute |
|---|---|---|---|---|---|
| Bond FM | Lagos | 92.9 FM | 7.3 | 54.0% | 13 |
| Cool FM | Lagos | 96.9 FM | 11.2 | 83.7% | 11 |
| Metro FM | Lagos | 97.7 FM | 5.8 | 43.0% | 5 |
| Nigeria Info | Lagos | 99.3 FM | 11.3 | 84.0% | 10 |
| Rhythm FM | Lagos | 93.7 FM | 10.9 | 83.6% | 11 |
| Wazobia FM | Lagos | 95.1 FM | 11.2 | 83.5% | 14 |
| Citizen FM | Abuja | 93.7 FM | 7.2 | 54.9% | 16 |
| Cool FM | Abuja | 96.9 FM | 11.1 | 82.7% | 20 |
| Kapital FM | Abuja | 92.9 FM | 7.6 | 58.1% | 13 |
| Kiss FM | Abuja | 99.9 FM | 4.3 | 33.1% | 4 |
| Nigeria Info | Abuja | 95.1 FM | 11.2 | 83.5% | 13 |
| Wazobia FM | Abuja | 99.5 FM | 11.2 | 83.3% | 15 |
Whose gap was it
A gap can come from the station's stream or from our own recorder. We split the minutes by cause, so a gap on our side is never blamed on a station.
| Station | Monitored | Station stream down | Recorder off | Silent | Total minutes | Outages | Median recovery |
|---|---|---|---|---|---|---|---|
| Bond FM Lagos | 436 (54.1%) | 250 | 110 | 10 | 806 | 7 | 3.0 min |
| Cool FM Lagos | 674 (83.7%) | 20 | 111 | 0 | 805 | 8 | 3.0 min |
| Metro FM Lagos | 347 (43.1%) | 185 | 110 | 164 | 806 | 2 | 228.0 min |
| Nigeria Info Lagos | 677 (84.0%) | 18 | 111 | 0 | 806 | 7 | 3.0 min |
| Rhythm FM Lagos | 654 (83.6%) | 17 | 111 | 0 | 782 | 7 | 3.0 min |
| Wazobia FM Lagos | 673 (83.5%) | 22 | 111 | 0 | 806 | 8 | 3.0 min |
| Citizen FM Abuja | 429 (54.9%) | 236 | 111 | 5 | 781 | 10 | 4.0 min |
| Cool FM Abuja | 667 (82.8%) | 28 | 111 | 0 | 806 | 8 | 3.0 min |
| Kapital FM Abuja | 455 (58.2%) | 215 | 112 | 0 | 782 | 6 | 3.5 min |
| Kiss FM Abuja | 259 (33.1%) | 358 | 113 | 52 | 782 | 3 | 12.0 min |
| Nigeria Info Abuja | 673 (83.5%) | 22 | 111 | 0 | 806 | 7 | 3.0 min |
| Wazobia FM Abuja | 672 (83.4%) | 22 | 112 | 0 | 806 | 7 | 3.0 min |
Monitored
We had real audio from the station, so an advert that played would have been heard.
Station stream down
Our recorder was running, but the station's stream sent nothing: the connection was refused, the stream ended or no data came. These minutes are left out of the score and never counted against the station.
Recorder off
No Spotledger recorder was running. That is our own failure, such as our recording computer stopping by accident, and we show it as ours.
Silent
The stream was playing, but only silence came through. Silence cannot show what went out on air, so these minutes are not counted as monitored.
An outage is a stretch of 2 or more minutes not monitored. Median recovery is the middle length of those stretches, over the 13.4 hours of this run.
What Lagos and Abuja radio played,recorded from 12 official streams
the ad rack
FoundNamedCounted
61 adverts21 brands1261 airings
Scroll to walk in
Brands shown here are not Spotledger customers. These adverts were recorded from public broadcasts.
Adverts found
Signal processing noticed audio that came back across hours and stations, rules dropped songs and jingles, and Spotledger AI read the transcript to name the brand. A person confirms every new brand.
0 of 61 found adverts have been confirmed by a person. 61 still wait for one, and are marked that way below.
automotive
Advert
telecoms
Advert
Advert
Advert
beverages
Advert
beverages
Advert
Advert
Advert
Advert
Advert
automotive services
American Mechanics is not a Spotledger customer. This advert was recorded from a public broadcast.
American Mechanics
Kiss FM Abuja (577)
Unnamed advert is not a Spotledger customer. This advert was recorded from a public broadcast.
Pro Father with iPhone 18 Pro. It comes with a 6.3-inch ProMotion display, a 48-megapixel fusion main camera with variable aperture, an A20 Pro chip, a durable aluminum unibody design, and a big leap in battery life with up to ...
Wazobia FM Abuja (13), Nigeria Info Lagos (13), Cool FM Abuja (13), Rhythm FM Lagos (12), Cool FM Lagos (11), Wazobia FM Lagos (9), Nigeria Info Abuja (6), Bond FM Lagos (1)
MTN FlyX. Subscribe to the Unlimited Data Bundle for 30,000 Naira and get a free to use router with free installation
MTN is not a Spotledger customer. This advert was recorded from a public broadcast.
For fast internet with an outdoor unit for stronger signal and better connectivity. Get yours today from MTN stores nationwide or visit flyx.mtn.ng. Subscribe to the Unlimited Data Bundle for 30,000 Naira and get a free to use router with ...
Wazobia FM Lagos (20), Cool FM Lagos (15), Nigeria Info Lagos (14), Cool FM Abuja (12), Wazobia FM Abuja (9), Nigeria Info Abuja (4), Bond FM Lagos (1), Kapital FM Abuja (1)
Unnamed advert is not a Spotledger customer. This advert was recorded from a public broadcast.
It's a lot of drama between you and your beautiful wife, Cardi B. Let's talk about some music.
Cool FM Lagos (32), Cool FM Abuja (12)
Unnamed advert is not a Spotledger customer. This advert was recorded from a public broadcast.
Warning, these songs may increase soft live behavior. Get addicted. 96.9 cool ever.
Cool FM Abuja (16), Cool FM Lagos (10)
Unnamed advert is not a Spotledger customer. This advert was recorded from a public broadcast.
No worries, go crazy, go crazy, yeah Slay, slay, slay, slay, slay Slay, slay, slay One knee, I'm so galoma It's a banger, you're ready
Cool FM Lagos (11), Cool FM Abuja (10), Rhythm FM Lagos (4)
Legend Extra Stout
Legend Extra Stout is not a Spotledger customer. This advert was recorded from a public broadcast.
It's got that bold taste that matches your cool swag, sharp vibes and one-of-a-kind style. Feel the full-brewed Legend Extra Stout go down easy from the first sip to the very last drop. Not for sale to persons under the ...
Nigeria Info Abuja (12), Nigeria Info Lagos (6), Wazobia FM Abuja (3)
Unnamed advert is not a Spotledger customer. This advert was recorded from a public broadcast.
The night! In the fit of your own
Nigeria Info Abuja (21)
Milo 3-in-1 Milky and Creamy
Milo is not a Spotledger customer. This advert was recorded from a public broadcast.
Here you go, dear. Mom, you didn't add milk. No need to. Taste it and see why. Wow, but how? Is it milky? Yes. Is it creamy? Yes. That's Milo 3-in-1 Milky and Creamy for you. It's so milky. I ...
Rhythm FM Lagos (6), Cool FM Abuja (5), Wazobia FM Abuja (3), Wazobia FM Lagos (2), Nigeria Info Abuja (2), Cool FM Lagos (1), Nigeria Info Lagos (1)
Unnamed advert is not a Spotledger customer. This advert was recorded from a public broadcast.
Choc Money, they make it good times flow Today not today, tomorrow go come But every single day, make you have some fun Life is for living, make you enjoy your way Choc Money, everyday is a baby Everyday is ...
Wazobia FM Lagos (19)
Unnamed advert is not a Spotledger customer. This advert was recorded from a public broadcast.
I want to make you know say I mean to you they say I'm bad
Cool FM Lagos (14), Cool FM Abuja (4)
Unnamed advert is not a Spotledger customer. This advert was recorded from a public broadcast.
You better leave them good girl aunts I see a way now at the house of hands The way your friends they do no copy on me Feeds to make you a little happier How long you gon' fit to ...
Cool FM Abuja (9), Cool FM Lagos (4), Rhythm FM Lagos (4)
Brands shown here are not Spotledger customers. These adverts were recorded from public broadcasts.
Detection log
A spread of airings from the run. Times are Lagos local and relative to the start of the run. Each row is one play of one advert, with the fingerprint that found it and its confidence score.
| Time (Lagos) | Station | Brand | Length | Found by | Source | Confidence |
|---|---|---|---|---|---|---|
| Day 1, 20:56 | Nigeria Info Lagos 99.3 FM | Too SureFMCG | 46.6 s | Both fingerprints agree | Official online stream | 0.99 |
| Day 1, 21:25 | Wazobia FM Abuja 99.5 FM | Fantabeverages | 28.7 s | Both fingerprints agree | Official online stream | 0.99 |
| Day 1, 21:50 | Wazobia FM Abuja 99.5 FM | Too SureFMCG | 46.5 s | Both fingerprints agree | Official online stream | 0.99 |
| Day 1, 22:27 | Nigeria Info Lagos 99.3 FM | Appleretail | 29.1 s | Both fingerprints agree | Official online stream | 0.99 |
| Day 2, 03:11 | Wazobia FM Lagos 95.1 FM | Appleretail | 29.1 s | Both fingerprints agree | Official online stream | 0.99 |
| Day 2, 03:56 | Nigeria Info Abuja 95.1 FM | Appleretail | 29.1 s | Both fingerprints agree | Official online stream | 0.99 |
| Day 2, 04:01 | Wazobia FM Abuja 99.5 FM | Appleretail | 29.1 s | Both fingerprints agree | Official online stream | 0.99 |
| Day 2, 04:27 | Nigeria Info Lagos 99.3 FM | Fantabeverages | 28.7 s | Both fingerprints agree | Official online stream | 0.99 |
| Day 2, 05:11 | Wazobia FM Abuja 99.5 FM | Appleretail | 29.2 s | Both fingerprints agree | Official online stream | 0.99 |
| Day 2, 05:28 | Nigeria Info Lagos 99.3 FM | Fantabeverages | 9.4 s of 28.7 scut short | Classic fingerprint | Official online stream | 0.94 |
| Day 2, 05:51 | Wazobia FM Lagos 95.1 FM | Nescafébeverages | 30.9 s | Both fingerprints agree | Official online stream | 0.99 |
| Day 2, 06:18 | Cool FM Abuja 96.9 FM | Fantabeverages | 28.7 s | Both fingerprints agree | Official online stream | 0.99 |
| Day 2, 07:30 | Wazobia FM Abuja 99.5 FM | Nescafébeverages | 30.9 s | Both fingerprints agree | Official online stream | 0.99 |
| Day 2, 09:13 | Wazobia FM Lagos 95.1 FM | Fantabeverages | 28.6 s | Both fingerprints agree | Official online stream | 0.99 |
Can I listen? You can always play the adverts you upload. Station recordings play for Spotledger staff only until each station gives written permission. Until then every airing shows its time, source, score and the seconds that played, and the report lists them. One airing is shown in full, with its waveform and the matched seconds, on the home page.
Brands shown here are not Spotledger customers. These adverts were recorded from public broadcasts.
Hour by hour
One block per station per hour. The grey blocks are minutes we were not listening, and they never count against a station.
Hours run left to right, Lagos time, from Day 1, 20:00 to Day 2, 10:00.
Measured accuracy
Cases detected, then correct finds, for each fingerprint (Neural fingerprint, then Classic fingerprint), from the controlled test below. A full bar means every case.
| Condition | Neural fingerprint | Classic fingerprint |
|---|---|---|
| As broadcast | 13 of 13 | 13 of 13 |
| Presenter talking over the advert | 12 of 12 | 12 of 12 |
| Music playing under the advert | 12 of 12 | 12 of 12 |
| Low quality stream (32 kbps) | 12 of 12 | 12 of 12 |
| Background noise | 12 of 12 | 12 of 12 |
| Cut short (40 to 90% played) | 12 of 12 | 12 of 12 |
| Played 2% fast or slow | 12 of 12 | 4 of 12 |
How this test was built. Ten real adverts that Spotledger found in its own recordings were cut out clean and inserted 85 times into three hours of other stations' real audio, some changed the way radio changes them. We know exactly where each one is, so every miss and every false alarm is counted. This is a controlled test: we placed every advert ourselves, so the right answer for each case is known. The other radio comes from stations the neural fingerprint trained on, so this is not a score on stations it has not heard.
Both fingerprints run on every minute of audio: the neural one finds more airings, including ones played slightly fast or slow; the classic one times them closely (half of its start times were within 0.01 seconds).
The report
One campaign's report from our demo workspace. The plan is a test plan written by Spotledger, so no one booked these spots.
Proof of airing report
Apple on radio
Test plan written by Spotledger to show plan versus actual. No one booked these spots.
Source: Official online stream (the audio on the station's website; the FM broadcast can differ).
Every booked spot of this campaign in the report
Metro FM Lagos
Day 1, 21:00 to 22:00
We listened to 59 of 60 minutes; a 33 second gap could hold this 29 second advert. We cannot say whether it played, so this spot is left out of the score and out of make goods.
Cool FM Lagos
Day 1, 21:00 to 22:00
Detected at 21:02:42 in the booked band 21:00 to 22:00, full length, right version.
Rhythm FM Lagos
Day 1, 21:00 to 22:00
Detected at 21:16:49 in the booked band 21:00 to 22:00, full length, right version.
Cool FM Lagos
Day 1, 21:00 to 22:00
Detected at 21:55:44 in the booked band 21:00 to 22:00, full length, right version.
Nigeria Info Lagos
Day 1, 22:00 to 23:00
Detected at 22:27:15 in the booked band 22:00 to 23:00, full length, right version.
Wazobia FM Lagos
Day 1, 22:00 to 23:00
Detected at 22:48:58 in the booked band 22:00 to 23:00, full length, right version.
Wazobia FM Abuja
Day 2, 02:00 to 03:00
We listened to all 60 minutes of the band 02:00 to 03:00 and did not hear this advert.
Nigeria Info Abuja
Day 2, 02:00 to 03:00
Detected at 02:25:53 in the booked band 02:00 to 03:00, full length, right version.
Cool FM Abuja
Day 2, 02:00 to 03:00
Detected at 02:25:57 in the booked band 02:00 to 03:00, full length, right version.
Coverage record
Every report prints a SHA-256 fingerprint of its own contents in the footer, so any change to it can be detected.
Summary
Booked spots, how many aired as booked, how many were not detected in a fully monitored window, and the compliance rate.
Compliance
Each status in plain words, by station, so you can see where the gaps are.
Every spot
Every booked spot with its time, the source, the version that aired, the length played and which fingerprint found it. The CSV has a Source column too.
Source and coverage
Where each airing was recorded from: Official online stream (the audio on the station's website; the FM broadcast can differ). Then the minutes we were listening and the longest gap. Minutes we were not listening are left out of the score.
Method and confidence
Each spot shows which detector found it: Classic fingerprint, Neural fingerprint or Both fingerprints agree. Confidence is a score from how closely the airing matches the advert in the fingerprints that found it. A person checks any score under 0.80, and any find by the neural fingerprint alone under 0.94.
How to dispute
Any line can be disputed. A person reviews it and the outcome is recorded.
Reports come as a PDF and a CSV. The CSV has the make goods list: spots not detected in a fully monitored window, cut short, in the wrong version or aired outside the booked band. Open the demo workspace to see one.
Brands shown here are not Spotledger customers. These adverts were recorded from public broadcasts.
How it was made
The run used the same recorder, fingerprints, transcription and checks that customers use, on public broadcasts. Where a number comes from a test rather than from the run, the page says so. Follow one airing through every step.
Free for 30 days. No card and no approval needed.